Journal of Molecular Liquids最新文献

{"title":"Synthesis of a novel hierarchical adsorbent AC@chitosan@PANI for removal of orange G: Synergistic effects, statistical physics modeling, and adsorption mechanism","authors":"Abdelali Grich,&nbsp;Taoufiq Bouzid,&nbsp;Aicha Naboulsi,&nbsp;Hicham Yazid,&nbsp;Abdelmajid Regti,&nbsp;Mamoune El Himri,&nbsp;Mohammadine El Haddad","doi":"10.1016/j.molliq.2026.129253","DOIUrl":"10.1016/j.molliq.2026.129253","url":null,"abstract":"<div><div>For A novel eco-friendly AC@chitosan@PANI composite adsorbent was synthesized via a three-step process: chitosan grafting onto activated carbon fibers, aniline impregnation, and in situ polymerization using sodium persulfate to form polyaniline. This composite was applied for Orange G anionic dye removal from aqueous solutions. The material's structural and surface characteristics were analyzed using FTIR, XRD, SEM, and EDX techniques. Adsorption isotherms were investigated at 298, 308, and 318 K. The adsorption process displayed three distinct stages: rapid initial uptake during the first 40 min (representing ∼50% of total adsorption), followed by gradual equilibrium attainment, achieving approximately 112 mg/g after 180 min at 298 K and pH 6. Kinetic data fitted well with the pseudo-second-order model. Mechanistic insights were obtained through multilayer model analysis, which demonstrated that temperature influences molecular orientation - low temperatures promote vertical alignment and molecular aggregation, while higher temperatures favor parallel configurations. Thermodynamic calculations confirmed an endothermic, physically-driven process. DFT calculations combined with NCI analysis provided molecular-level understanding of the adsorption mechanism. The composite exhibits a hierarchical structure with activated carbon as the core, chitosan as the intermediate layer, and polyaniline as the outer coating. The adsorption mechanism involves three synergistic interactions: hydrogen bonding, physical adsorption, and electrostatic attraction.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129253"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular simulation of conformational and surface characteristics of ring and linear polymer nanoparticles with different chain stiffness","authors":"Krisana Monklang ,&nbsp;Yuya Doi ,&nbsp;Visit Vao-soongnern","doi":"10.1016/j.molliq.2026.129260","DOIUrl":"10.1016/j.molliq.2026.129260","url":null,"abstract":"<div><div>Monte Carlo (MC) simulations of coarse-grained (CG) <em>polyethylene-like</em> models were developed to investigate the impact of chain topology and chain stiffness on conformational and surface properties of free-standing ring and linear polymer nanoparticles in vacuum. The “<em>forcefield</em>,” to represent the intramolecular and intermolecular interactions, was treated by the Rotational Isomeric State (RIS) model and the Lennard-Jones (LJ) potential energies, respectively. The original RIS statistical weights were multiplied by the chain stiffness parameter (<em>k</em>) to mimic the characteristics of stiffer (<em>k</em> &gt; 1.0) and more flexible (<em>k</em> &lt; 1.0) chains in comparison to polyethylene (<em>k</em> = 1.0). For more flexible chains, bulk densities of polymer nanoparticles generally increase, resulting in sharper surface profiles and more compacted structures. Compared to linear chains, the density of ring polymer nanoparticles tends to be slightly higher, with noticeably sharper surface profiles, especially for more flexible chains. In the bulk region, bonds and chains typically exhibit random orientation; nevertheless, near the surface, particularly for stiffer chains, they show anisotropic arrangement. A lower fraction of <em>trans</em> state is apparent in more flexible polymers, which leads to smaller molecular dimensions.Polymer chains generally have their largest molecular axes aligned parallel to the surface, and a higher degree of this anisotropy is observed for more rigid chains. According to their intramolecular and intermolecular energetics, nanoparticles adopt denser structures with a larger fraction of <em>gauche</em> state for more flexible chains in the bulk region. Near the surface, chains typically adopt more <em>trans</em> conformation, and the reduction in density leads to faster monomer dynamics, which can be seen for linear chains, while monomer dynamics in ring polymers move more slowly due to bond connectivity. The distance of increased dynamics in the surface region is longer than the scale of bond length for both ring and linear polymer nanoparticles.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129260"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145975659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recovery of lithium from lithium carbonate precipitation mother liquor using ethylhexyl salicylate and trialkylphosphine oxide system","authors":"Feiyu Kong ,&nbsp;Xinru Shi ,&nbsp;Licheng Zhang ,&nbsp;Kang Hu ,&nbsp;Dong Shi ,&nbsp;Lijuan Li","doi":"10.1016/j.molliq.2026.129271","DOIUrl":"10.1016/j.molliq.2026.129271","url":null,"abstract":"<div><div>With the rapid development of the new energy industry in recent years, the importance of lithium has become increasingly prominent; therefore, improving the comprehensive utilization efficiency of lithium resources is particularly crucial. This study focuses on the recovery of lithium from the lithium precipitation mother liquor of lithium carbonate and has developed a solvent extraction system based on salicylate esters. Compared with traditional solvent extraction systems, the extraction system proposed in this work exhibits advantages such as high capacity and fast phase separation. Using the lithium precipitation mother liquor as the raw material, under the condition of phase ratio O/A = 1/5, the lithium extraction rate can reach more than 95% through 2-stage countercurrent extraction, and the lithium loading capacity in the organic phase can reach 7.5 g/L. After 2-stage scrubbing and 1-stage stripping, a lithium-rich solution with a concentration of 35 g/L can be obtained, which greatly simplifies the lithium recovery process. Furthermore, the system designed in this study demonstrates excellent stability during the extraction-stripping cycle, with no occurrence of third-phase formation or solid precipitation. The mechanism of lithium‑sodium separation by the system was investigated using ESI-MS, FT-IR, and DFT. The results indicate that both lithium and sodium form 1:1:1 complexes with the ligand in the organic phase; however, there is a significant difference in the complexation energy during the formation of complexes between lithium‑sodium and the ligands, thereby enabling the extraction separation of the two. This work proposes a new and feasible approach for the efficient recovery of lithium.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129271"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Removal of organic contamination by visible light photocatalytic-adsorption effect","authors":"János Kóth,&nbsp;Katalin Sinkó","doi":"10.1016/j.molliq.2026.129312","DOIUrl":"10.1016/j.molliq.2026.129312","url":null,"abstract":"<div><div><em>The purification of wastewater from</em> the organic drugs is a relevant global problem. The aim of this work was the elimination of organic contamination from water by means of a toxic alumina industrial waste, the red mud. Both environmental and economic requirements were respected by application of an industrial waste. The photocatalysis can be performed in visible region instead of generally applied ultraviolet light. The photodegradation properties of red mud (RM) were tested by means of model agents (methylene blue, Congo red, and crystal violet) and real organic pollutants (cortisone, corticosterone, and naproxen). The mechanism of the degradation process (photocatalytic effect and/or adsorption) has been determined. The degradation effect of RM was measured by ultraviolet-visible (UV-VIS) and fluorescence spectroscopies. The degradation of the organic compounds was controlled even by infrared spectroscopy (FTIR).</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129312"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antimicrobial aqueous aerosol formulation using a propolis extract from eutectic solvent extraction","authors":"Ana R.F. Filipe ,&nbsp;Letícia S. Contieri ,&nbsp;Márcia Braz ,&nbsp;Bárbara M.C. Vaz ,&nbsp;Ana S. Fernandes ,&nbsp;Ana Júlio ,&nbsp;Maurício A. Rostagno ,&nbsp;Adelaide Almeida ,&nbsp;Leonardo M. de Souza Mesquita ,&nbsp;Vitor Sencadas ,&nbsp;Sónia P.M. Ventura","doi":"10.1016/j.molliq.2026.129303","DOIUrl":"10.1016/j.molliq.2026.129303","url":null,"abstract":"<div><div>Propolis, naturally produced by honeybees for the construction and protection of beehives, exhibits numerous health benefits, particularly antimicrobial activity derived from phenolic compounds abundant in Brazilian Green propolis. However, conventional extraction methods and solvents can be environmentally hazardous and potentially harmful to skin, evidencing the need to develop safe solutions without compromising antimicrobial effects, such as the use of eutectic solvent (ES).Although the use of ES for the extraction of phenolic compounds and the antimicrobial activity of propolis are well established, this work is the first to investigate propolis as an active ingredient in the formulation of aqueous-based antiseptic aerosols. A propolis-based extract was developed using ultrasound-assisted extraction (UAE) and a novel ES composed of betaine and 1,4-butanediol in a 1:1 M ratio, and a solid-liquid ratio of 0.02 g_propolis.mL_solvent⁻¹. This methodology yielded an extract with a total phenolic content of 139 ± 15 mg_GAE.g_propolis⁻¹, effectively inactivating methicillin-resistant <em>Staphylococcus aureus</em> (MRSA) and <em>Pseudomonas aeruginosa</em> with minimum inhibitory concentration (MIC) values of 0.174 mg_GAE.mL_solvent⁻¹ and 0.696 mg_GAE.mL_solvent⁻¹, respectively. Furthermore, an aerosol prototype for skin application was successfully developed using this extract. <em>Ex vivo</em> assays on porcine skin confirmed its efficacy, showing a 2-log inactivation of MRSA after 24 h. Cell viability assays in human keratinocytes indicated the biocompatibility of the formulation with the skin. These findings serve as a proof of concept, showing the effectiveness of propolis formulation against bacteria and its potential application as an aqueous aerosol for treating skin infections.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129303"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ionic liquids beyond the solvent: structure–activity design for tunable luminescence and next-generation photonic applications","authors":"Ashish Tiwari ,&nbsp;Sanjay Janrao Dhoble","doi":"10.1016/j.molliq.2026.129280","DOIUrl":"10.1016/j.molliq.2026.129280","url":null,"abstract":"<div><div>The photophysical behavior of luminescent ionic liquids (ILs) is governed by a complex interplay between IL chemical structure and specific solute–solvent interactions. This review uniquely dissects how the structural diversity of ILs—ranging from cation/anion selection to the incorporation of functional groups such as protic imidazolium or hydrogen-bonding anions—directly modulates excited-state dynamics, radiative and non-radiative decay rates, and quenching mechanisms. We highlight how IL-induced microenvironmental changes, including microviscosity and microheterogeneity, as well as direct electrostatic and coordination interactions, can be leveraged to fine-tune luminescence. Special emphasis is placed on structure–activity relationships, synthetic strategies for luminescent ILs, and the resulting advances in photophysical mechanisms such as Förster Resonance Energy Transfer (FRET), Aggregation-Induced Emission (AIE), Triplet-Triplet Annihilation Upconversion (TTA-UC), and non-radiative decay suppression. The review also presents a forward-looking perspective on the rational design of ILs—covering functionalized, chiral, nanostructured, and polymerizable ILs (PILs)—for next-generation photonic, sensing, and optoelectronic technologies.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129280"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular insights into zinc stearate nanoparticle-modified polyurethane foam for efficient water–oil separation","authors":"Fatemeh Sadati ,&nbsp;Yousef Tamsilian ,&nbsp;Reza Mossayebi Behbahani","doi":"10.1016/j.molliq.2026.129287","DOIUrl":"10.1016/j.molliq.2026.129287","url":null,"abstract":"<div><div>Molecular-level understanding of oil–water separation is critical for designing high-performance superwettable materials. Herein, molecular dynamics (MD) simulations are employed to investigate the interfacial behavior of zinc stearate (ZnSt)–modified polyurethane (PU) surfaces. Quantitative contact angle analysis reveals a transition from moderate wettability on pristine PU (water contact angle ≈ 61° ± 2, oil contact angle ≈ 44° ± 2) to pronounced superhydrophobic–superoleophilic behavior after ZnSt modification, with a water contact angle of ≈ 169° ± 2 and an oil contact angle below 5°. Energy analyses show a substantial increase in oil–surface interaction energy (stabilizing near ≈ 115 kcal·mol⁻¹) and a marked reduction in water adhesion. Radial distribution functions, mean square displacement, and density profiles confirm weakened water–surface interactions and enhanced lateral mobility and multilayer adsorption of oil on ZnSt-modified PU. The close agreement between simulated contact angles and reported experimental values validates the computational framework. These results elucidate the molecular mechanisms governing selective wettability and provide quantitative guidance for the design of advanced PU-based oil–water separation materials.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129287"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ferrocene as a non-innocent redox marker in sensors: Unveiling its role in anion binding by electronic structure calculations and experiments","authors":"Soma Keszei ,&nbsp;Rita Skoda-Földes ,&nbsp;György Lendvay","doi":"10.1016/j.molliq.2026.129292","DOIUrl":"10.1016/j.molliq.2026.129292","url":null,"abstract":"<div><div>Sensing of weakly coordinating anions remains a significant challenge, due to their relatively low basicity. Our theoretical and experimental investigations show that a ferrocene moiety, incorporated into a receptor molecule not only serves as an electrochemical marker, but also able to participate in the binding of weakly coordinating anions, making possible their detection. Geometrical parameters of DFT-optimized structures of complexes, formed by the binding of [BF₄]⁻, [OTf]⁻ and [CF₃CO₂]⁻ anions to the isomers of protonated 1-(4-ferrocenyl-6-phenylpyrimidin-2-yl)-3-phenylurea revealed the formation of C-H---anion hydrogen bonds between ferrocene and the O or F atoms of the coordinated anion, which is supported by bond order, QTAIM, NCI as well as chemical energy component analysis. Importantly, the computational predictions of hydrogen bond formation are corroborated by low-temperature ¹H NMR titration experiments, highlighting the essential role of combined experimental and theoretical investigations in accurately characterizing anion recognition processes.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129292"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solid-state emissive small molecules comprising 1,2,4-oxadiazole scaffold: intramolecular charge transfer-driven tunable photophysical properties","authors":"Murat Olutas ,&nbsp;Farah I.A. Al-Hayali ,&nbsp;Akın Sağırlı ,&nbsp;Havva Acar","doi":"10.1016/j.molliq.2026.129324","DOIUrl":"10.1016/j.molliq.2026.129324","url":null,"abstract":"<div><div>1,2,4-oxadiazole is a heterocyclic compound rarely preferred as a main scaffold in the organic emitter literature due to its antisymmetric structure and restricted structural conjugation. To provide knowledge for designing new structures, it is essential to understand the emission mechanism of compounds comprising this member of the oxadiazole family as a scaffold. Herein, we report the syntheses and the photophysical properties of a new group of fluorescent small molecules with a 1,2,4-oxadiazole scaffold that features aryl and styryl moieties modified with donor and acceptor groups. The photophysical properties of the compounds, exhibiting fluorescence emission in both solution and solid-state, have been systematically studied, and their emission mechanism was also discussed considering the results. Analyzing steady-state photoluminescence (PL) measurements performed for the dilute solutions of compounds shows that only the donor-acceptor structured compounds exhibit strong fluorescence emission, shifting to the lower-energy side of the spectrum, accompanied by a decreasing PL quantum yield, as the solvent polarity increases. The results indicate that the main mechanism responsible for this strong positive solvatochromic behavior is the dipole-dipole coupling between the molecules of the synthesized compounds with intramolecular charge transfer (ICT) properties and the solvent molecules. The solvatochromic behavior of the compounds was also analyzed using five different solvatochromic shift methods. In addition, the results of the quantum chemical calculations performed for the synthesized molecules reveal a charge-separated distribution for the frontier molecular orbitals of the compounds, confirming their ICT nature. On the other hand, PL spectroscopy studies show that all compounds also exhibit PL emission in solid phases. The results indicate that the solid-state emission of the compounds can be tuned between the blue and red regions of the visible spectrum, depending on the position and type of functional groups attached to the oxadiazole scaffold, without significant changes in conjugation length. Furthermore, the analyses of time-resolved fluorescence measurements conducted to understand their emission kinetics reveal an ICT-driven emission model consisting of a radiative decay pathway from a locally excited (LE) state to an ICT state, then to the ground state.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129324"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146074514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating DFT and experiments to elucidate Pb2+–surfactant interactions for micelle-enhanced water remediation","authors":"Abdelhakim Bourouba ,&nbsp;Redha Alouaoui ,&nbsp;Samira Ferhat ,&nbsp;Tomasz Janek","doi":"10.1016/j.molliq.2026.129331","DOIUrl":"10.1016/j.molliq.2026.129331","url":null,"abstract":"<div><div>Lead ions (Pb²⁺) are highly toxic, bioaccumulative, and non-biodegradable, making their removal from contaminated environments a critical global challenge. In this work, an integrated quantum–experimental framework was developed to investigate Pb²⁺ adsorption by two anionic surfactants N-lauroylsarcosine (LS) and sodium dodecyl sulfate (SDS) and a nonionic surfactant (Tween 80). Density Functional Theory (DFT) calculations of molecular electrostatic potential, Mulliken charge distribution, and adsorption energy (ΔEₐdₛ) revealed that LS exhibited the strongest affinity for Pb²⁺, followed by SDS, while Tween 80 showed negligible binding. Experimental validation through surface tension isotherms (Szyszkowski and Szyszkowski–Frumkin model fitting) and dynamic light scattering (DLS) measurements confirmed these trends. Pb²⁺ complexation significantly reduced micellar aggregation numbers (from 73 to 18 for LS and from 78 to 29 for SDS), while Tween 80 displayed minimal variation. The strong agreement between theoretical and experimental results demonstrates that Pb²⁺ ions destabilize micelles by reducing their aggregation capacity, with LS showing the most efficient Pb²⁺ removal. This study provides a systematic correlation between DFT-predicted adsorption energetics and experimental interfacial behavior in Pb²⁺–surfactant systems, establishing a predictive strategy for the rational design of eco-friendly, surfactant-assisted remediation technologies for heavy metal pollutants.</div></div>","PeriodicalId":371,"journal":{"name":"Journal of Molecular Liquids","volume":"446 ","pages":"Article 129331"},"PeriodicalIF":5.2,"publicationDate":"2026-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146185158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}